Search Results for author: Ladislau Bölöni

Found 14 papers, 4 papers with code

THOS: A Benchmark Dataset for Targeted Hate and Offensive Speech

1 code implementation11 Nov 2023 Saad Almohaimeed, Saleh Almohaimeed, Ashfaq Ali Shafin, Bogdan Carbunar, Ladislau Bölöni

Detecting harmful content on social media, such as Twitter, is made difficult by the fact that the seemingly simple yes/no classification conceals a significant amount of complexity.

Predicting infections in the Covid-19 pandemic -- lessons learned

no code implementations2 Dec 2021 Sharare Zehtabian, Siavash Khodadadeh, Damla Turgut, Ladislau Bölöni

Throughout the Covid-19 pandemic, a significant amount of effort had been put into developing techniques that predict the number of infections under various assumptions about the public policy and non-pharmaceutical interventions.

Cultural Vocal Bursts Intensity Prediction

Privacy-Preserving Learning of Human Activity Predictors in Smart Environments

no code implementations17 Jan 2021 Sharare Zehtabian, Siavash Khodadadeh, Ladislau Bölöni, Damla Turgut

The daily activities performed by a disabled or elderly person can be monitored by a smart environment, and the acquired data can be used to learn a predictive model of user behavior.

Federated Learning Privacy Preserving

Preventing Value Function Collapse in Ensemble {Q}-Learning by Maximizing Representation Diversity

no code implementations24 Jun 2020 Hassam Ullah Sheikh, Ladislau Bölöni

Recently, the Maxmin and Ensemble Q-learning algorithms have used different estimates provided by the ensembles of learners to reduce the overestimation bias.

Q-Learning

Multi-Agent Reinforcement Learning for Problems with Combined Individual and Team Reward

no code implementations24 Mar 2020 Hassam Ullah Sheikh, Ladislau Bölöni

This is a challenging task for current state-of-the-art multi-agent reinforcement algorithms that are designed to either maximize the global reward of the team or the individual local rewards.

Multi-agent Reinforcement Learning reinforcement-learning +1

Accept Synthetic Objects as Real: End-to-End Training of Attentive Deep Visuomotor Policies for Manipulation in Clutter

1 code implementation24 Sep 2019 Pooya Abolghasemi, Ladislau Bölöni

In addition, we find that both ASOR-IA and ASOR-EA outperform previous approaches even in uncluttered environments, with ASOR-EA performing better even in clutter compared to the previous best baseline in an uncluttered environment.

Data Augmentation Imitation Learning +2

Universal Policies to Learn Them All

1 code implementation24 Aug 2019 Hassam Ullah Sheikh, Ladislau Bölöni

We explore a collaborative and cooperative multi-agent reinforcement learning setting where a team of reinforcement learning agents attempt to solve a single cooperative task in a multi-scenario setting.

Multi-agent Reinforcement Learning reinforcement-learning +1

Pay attention! - Robustifying a Deep Visuomotor Policy through Task-Focused Attention

no code implementations26 Sep 2018 Pooya Abolghasemi, Amir Mazaheri, Mubarak Shah, Ladislau Bölöni

In this paper, we propose an approach for augmenting a deep visuomotor policy trained through demonstrations with Task Focused visual Attention (TFA).

Vision-Based Multi-Task Manipulation for Inexpensive Robots Using End-To-End Learning from Demonstration

1 code implementation10 Jul 2017 Rouhollah Rahmatizadeh, Pooya Abolghasemi, Ladislau Bölöni, Sergey Levine

We propose a technique for multi-task learning from demonstration that trains the controller of a low-cost robotic arm to accomplish several complex picking and placing tasks, as well as non-prehensile manipulation.

Multi-Task Learning Position

From virtual demonstration to real-world manipulation using LSTM and MDN

no code implementations12 Mar 2016 Rouhollah Rahmatizadeh, Pooya Abolghasemi, Aman Behal, Ladislau Bölöni

Our experimental studies validate the three contributions of the paper: (1) the controller learned from virtual demonstrations can be used to successfully perform the manipulation tasks on a physical robot, (2) the LSTM+MDN architectural choice outperforms other choices, such as the use of feedforward networks and mean-squared error based training signals and (3) allowing imperfect demonstrations in the training set also allows the controller to learn how to correct its manipulation mistakes.

A cookbook of translating English to Xapi

no code implementations31 Mar 2013 Ladislau Bölöni

The Xapagy cognitive architecture had been designed to perform narrative reasoning: to model and mimic the activities performed by humans when witnessing, reading, recalling, narrating and talking about stories.

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